of the Lake District . 539 



though rare, can generally be found in sections where the cleavage 

 has not obliterated the bedding planes as planes of division. Some 

 years ago I noticed Monograpti on a slab from Eeston, near Ings, 

 preserved in the Kendal Museum, which appeared to me to be 

 M. leintwardinensis, and though I was unsuccessful in finding these 

 fossils in situ at that locality, I last summer discovered that species 

 of Monographic in decomposed gritty shales not far above the top 

 of the Coniston Grits in Tebay Gill, associated with Monograptus 

 colomis, Barr., M. Salweyi, Hopk., a species of Ceratiocaris, and 

 several lamellibranchs. On my return to Cambridge, I found other 

 specimens of leintwardinensis, in a drawer containing fossils from the 

 passage beds between the Bannisdale Slates and Kirkby Moor Flags 

 at Underbarrow, and a specimen from the Crook of Lune, which 

 seems to belong to the same species. M. leintwardinensis, then, 

 appears to range through the Bannisdale Slates, and I have not met 

 with it in higher or lower beds. 



The lower portions of the passage beds between the Bannisdale 

 Slates and Kirkby Moor Flags are well-known from the occurrence 

 of Starfish in them, whence they are frequently spoken of as the 

 Starfish beds ; it may be noted that Starfish also occur at a lower 

 horizon in the Bannisdale Slates. The Starfish beds have yielded 

 a rich fauna at Underbarrow and elsewhere, and their fossils are 

 recorded in Salter's Catalogue of Cambrian and Silurian fossils as 

 well as in the Survey Memoir. Mr. Aveline compares the beds 

 above them with the Aymestry Limestone, and this correlation has 

 been generally accepted. These upper beds are calcareous and 

 contain Dayia navicula in abundance. 



KiKKBY MooK Flags. 



These well-known and richly fossiliferous strata are by general 

 consent referred to the Upper Ludlow. A large suite of fossils 

 from the immediate vicinity of Kendal and Kirkby Moor is pre- 

 served in the Kendal Museum, and another in the Woodwardian 

 Museum, and these are recorded in Salter's Catalogue and that 

 appended to the Survey Memoir. Numerous fossils are embedded 

 also in the less known flags found in the synclinal running from 

 Staveley to Tebay, and though many of these are of species occurring 

 in the outcrops of the main mass it would well repay local observers 

 to collect fossils from the flags of this sjaicline, especially in those 

 places where they pass down into the underlying Bannisdale Slates. 

 It is quite unnecessary to give a full list of the fossils of the Kirkby 

 Moor Flags. 



Conclusions. 



It has been stated that the Brathay Flags are generally recognized 

 as the equivalents of the Wenlock strata, whilst the Kirkby Moor 

 Flags are equally generally accepted as of Upper Ludlow age. The 

 upper portion only of the Bannisdale Slates is admitted to be Lower 

 Ludlow by the Geological Surveyors, whilst the lower part of the 

 Bannisdales, the whole of the Coniston Grits, and the Coldwell Beds 

 are referred to the Wenlock. If this be so, we should have some- 



